Concrete mixer



J. STOCKLEY.

CONCRETE MIXER. APPLICATION min AUG,8,- 19 21.

Patented. June 27, 1922.

3 SHEETSSHEET I.

. J MW a M 1 1 mil 0 a 1 I'l li 9 w 2 6 n g H! M I J. STOCKLEY.

CONCRETE MIXER. APPLICATION FILED AUG-8. 1921.

Patented June 27, 1922.

3 SHEETS-SHEET 2.

mm firm; 17700425 1 J. STOCKLEY. CONCRETE MIXER. APPLICATION men AUG. 3,1921.

CONCRETE MIXER.

T 0 aZZ whom it may concern Be it known that I, JAMES S'rooKLEY, asubject of the King of Great Britain, and resident of the city ofHalifax, in the Province of Nova Scot-ia Dominion of Canada, haveinvented certain new and useful Improvements in Concrete Mixers, ofwhich the following is a specification.

This invention relates to concrete mixers and has for its objects toprovide a device whereby concrete may be mixed mechanically to provide ameans whereby the pan containing the stone, cement and sand will berocked, to provide means whereby suitably inclined blades will berotated in the pan to provide means whereby the pan may be brought in aninclined position in order to be discharged by its contents.

These objects are attained by means of a pan supported on an axle anddesigned to be rocked on its base, the pan also carrying an uprightshaft engaging a hub carrying plates which are adapted to be rotatedwithin the pan.

Further objects are to provide a concrete mixer that is simple inconstruction and not liable to go out of repair and generally to adaptthe several parts to better perform the functions required of them.

lVith the above and other objects in view, the invention consistsessentially of the improved construction hereinafter described in detailin the accompanying specification and drawings. r

In the drawings Figure 1 is a front elevation of the im proved concretemixer.

Figure 2 is a plan view of the same.

Figure 3 is a vertical section.

Figure 4 is a plan view of the blades.

Figure 5 is an elevation of the same.

Fi ure 6 a cross section taken through an alternative form of blade.

Figure 7 is a vertical section of the improved mixer showingv analternative form of blades.

Figure 8 is a side elevation of the alternative form of blades-and post.

Figure 9 is a plan view of the same.

Figure 10 is a vertical section ofthe post used in the alternative formshown in Fig ure 8.

Figure 11 is a front elevation of the bolt connecting the blades to theaxle.

With the above and other objects in view,

Specification of Letters Patent. Pate t d J 27 1922 Application filedAugust 8, 1921.

Serial No. 490,687.

the invention consists essentially of the improved constructionhereinafter described in detail in the. accompanying specification anddrawings.

Referring to the drawings, A represents the improved concrete mixer,comprising a base 10 formed with two side members 11 and 12 bothtapering outwardly and down wardly and formed in the middle part thereofwith bearings in which are jour- .nalled two circular ends 13 and 1 1 ofa square axle 15.

On the square axle 15 is rovided a pan 16 circular in form and rigidlyconnected tothe axle by means of the bent arms 17 engaging the top ofthe pan and having a threaded end extending through the circular ends 13and 14 of the axle and rigidly held .by means of an annular rib 23formed on the upright shaft 19.

The rib 23 can be replaced if desired by means of a pin extendingthrough the upright shaft 19 and designed to hold the hub 22'from anyvertical movement.

The hub 22 is formed with side inclined ears 24: and 25 engagingopposite inclined blades 26 and 27 equal in length to the diameter ofthe pan 16 and adapted to be ro tated therein in order to completelymix" the cement. I

The hub is provided on either sides thereof with two plates 28 and 29each formed with extensions having an intervening notch 30. The notches30'are engaged by a transversely extending arm 31 formed with handles 32which is designed to rotate the plates within the pan. The arm 31 mayalso be used to rock the pan 16 on its base.

The extensions 28 and 29 could also be made integral with the hub '22 bybeing cast in single piece therewith thereby forming a head as shown inFigure 5 of the drawings.

If wooden blades are used the same will be triangular in cross sectionas shown in Figure 6 of the drawings and the ears 24 and 25 designed tocarry the blades will merely have to be slightly changed in form inorder to carry these wooden plates 33.

The pan 16 isfor1ned with a side opening 3% which registers with a chute35 pro vided on the side of the pan and through.

which the contents ofthe pan are to be discharged whenthesame is broughtin the inclined posltion as shown in dotted lines in on theside of thepan 16.

When this concrete mixer is in use, the sand, stone and cement areplaced in the pan inthe requiredquantity and the blades 26and27arerotated in the an 15 by means of the arm 31 which may be manipulated bytwo men gripping the notches 32 at each end thereof. I

To getathorough mixing of the concrete, when this rotating movement isfinished the "pan lbmaybe rocked on its ax'le "15 also by means ofthearm 31 room being allowed for the rocking movement through the sidemembers 11 and 12 being "tapered outwardly and downwardlyaspreviouslydescribed.

When the concrete is to 'bctaken from the pan 1.6 the door 36 is openedby means of the lever'37 and the pan 16 brought in inclined positionshown in Figure 3 of the drawings so that the concrete may be dischargedthrough the chute 35. g

It is obvious that the blades 26 and 27 may be made off any suitableterm and of any material although if made of wood, the form shown inFigurefiofthewlrawings is that which is best adapted as the cement samehas more strength than other forms.

Thehub 22 and plates 28 and 29 may also be of separate members connectedtogether by means of bolts or rivets, but it is also obvious that thesame can be cast together thus forming one integral structure as shownin Figure 5 o'ffthe drawings.

An "alternative form of blade *that could also readily be used in themixer is shown. in Figs. 7 to 11 inclusive.

In this instance the pan 156 is secured to its axle 15 by means ofthebolt and nut 10. The head of the bolt 4.0 is formed like a plainshank etl designed *to be housed within a longitudinal recess 42provided in an upright member 43150 which member a pair ofangleironblatles 14 are secured in angularrelation by means of brackets45. The top part of the upright member "'43 is provided "with a notch 46designed to engage the itransverse arm "31 operating the mixer.

Several styles of blades have been described but it is desired to haveit understood that any special make of blades could be usedwith thismixer although the blades described are the preferred forms for havingbeen tested.

As many changes could be made in the above construction and manyapparently widely differentembodiments of my invenvtion, within thescope of theclaims constructed without departing from the spirit orscope thereof, it is intended that all matter contained in theaccompanying specification and claims shall be interpreted asillustrative and not in a limiting sense.

Vhat I claim as my invention is:

1. A concrete mixer comprising a base formed with bearing blocks, asquare axle formed with circular ends journalled in the bearings, a panrigidly mounted on the axle, an upright shaftmounted in the pan, a hubon the shaft formed with oppositely inclined pairs of ears, bladescarried by the ears, *plates on the hub having notched extensions and anarm located in the notches, adapted to rotate the blades and rock thepan.

2. A concrete mixer comprising a base, formed with hearing blocks, asquare axle having two circular ends, journalled in the bearings, a panrigidly mounted on the axle, an upright shaft in the pan extendingthrough the axle and formed with an annu lar rib, a hub on the shaftengaged by the annular rib, and carrying oppositely inclined pairs ofears, blades carried by the inclined cars, a notched head on the hub,and an arm located in said notched head and adapted to rotate theblades.

3. concrete mixer comprising a base, formed with bearing blocks, asquare axle having two circular ends journailled in the bearings, a panrigidly mounted on the axle, a chute formed on the pan, a door slidablymounted in. the chute, a lever fulcrumed on the pan adapted to operatethe door, an upright shaft in the pan extending through the axle, andformed with an annular rib,

a hub on the shaft engaged by the rib and formed with oppositelyinclined pairs of cars, blades extending in diametrically oppositedirections and carried by the inclined pairs of ears, a notched head onthe hub, and an arm located in said notched head and adapted to rotatethe blades.

In Witness whereof I have hereunto set my hand in the presence of twowitnesses.

R. MURRAY, J. L. MAoKmNorfs.

